Well, good question, my Farm Co-op tested my soil, it was 6.4, and they told me I needed2 tons of lime per acre. I only have a 3 acre plot, and it's not worth to me to spend the money on having someone haul in 6 tons of the stuff when I can go out and buy seed engineered for that soil type,some here may argue, but thats just me. I put in acre each of milo, winter wheat, and soybeans, side by side. my first year on the beans though, they look ok at this point, but may yellow, I don't know, time will tell. But both the milo, and w.wheat did excellent on it. If someone here can set the record straight if lime drops ph, please put in your 2 cents worth.